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Article | REF: G2100 V1

Landfill sites - Impacts and outlook

Author: Hervé BILLARD

Publication date: April 10, 2001

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2. Regulatory framework

2.1 Storage classes

French regulations originally defined landfill classes according to the degree of permeability of the subsoil on the site. This degree of impermeability is defined by Darcy's law, and more precisely by the coefficient K according to the following expression: Q = KSi

with :

Q
 : 
(m/s) speed of advance in permeable layer
K
 : 
(m/s) bedrock permeability coefficient or Darcy coefficient
i
 : 
hydraulic gradient (i = h + e)
...
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